[INFO] fetching crate vcg 0.1.0...
[INFO] checking vcg-0.1.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate vcg 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate vcg 0.1.0
[INFO] finished tweaking crates.io crate vcg 0.1.0
[INFO] tweaked toml for crates.io crate vcg 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate vcg 0.1.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0edc659dd0b93347a2acb91f57b1b4ecaef35daff183510bd337f6e18377391f
[INFO] running `Command { std: "docker" "start" "-a" "0edc659dd0b93347a2acb91f57b1b4ecaef35daff183510bd337f6e18377391f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0edc659dd0b93347a2acb91f57b1b4ecaef35daff183510bd337f6e18377391f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0edc659dd0b93347a2acb91f57b1b4ecaef35daff183510bd337f6e18377391f", kill_on_drop: false }`
[INFO] [stdout] 0edc659dd0b93347a2acb91f57b1b4ecaef35daff183510bd337f6e18377391f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4482f347f5edcf310f5524ab86220d7003f3b8520f38548bce5a5202b27155c
[INFO] running `Command { std: "docker" "start" "-a" "d4482f347f5edcf310f5524ab86220d7003f3b8520f38548bce5a5202b27155c", kill_on_drop: false }`
[INFO] [stderr]    Compiling vcg v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Token`
[INFO] [stdout]  --> src/parser.rs:2:30
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::lexer::{EOF,Lexer,Token,TokenType};
[INFO] [stdout]   |                              ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Token`
[INFO] [stdout]  --> src/parser.rs:2:30
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::lexer::{EOF,Lexer,Token,TokenType};
[INFO] [stdout]   |                              ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `body`
[INFO] [stdout]    --> src/parser.rs:129:13
[INFO] [stdout]     |
[INFO] [stdout] 129 |         let body = self.parse_block()?;
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_body`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `body`
[INFO] [stdout]    --> src/parser.rs:129:13
[INFO] [stdout]     |
[INFO] [stdout] 129 |         let body = self.parse_block()?;
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_body`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `body`
[INFO] [stdout]    --> src/parser.rs:153:13
[INFO] [stdout]     |
[INFO] [stdout] 153 |         let body = self.parse_block()?;
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_body`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `body`
[INFO] [stdout]    --> src/parser.rs:153:13
[INFO] [stdout]     |
[INFO] [stdout] 153 |         let body = self.parse_block()?;
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_body`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/parser.rs:212:18
[INFO] [stdout]     |
[INFO] [stdout] 212 |                 let rhs = self.parse_expr_binary(level-1)?;
[INFO] [stdout]     |                     ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/parser.rs:212:18
[INFO] [stdout]     |
[INFO] [stdout] 212 |                 let rhs = self.parse_expr_binary(level-1)?;
[INFO] [stdout]     |                     ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `bytecodes` is never read
[INFO] [stdout]   --> src/program.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct Program {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 19 |     bytecodes: Vec<Bytecode>
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `bytecodes` is never read
[INFO] [stdout]   --> src/program.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct Program {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 19 |     bytecodes: Vec<Bytecode>
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/parser.rs:99:2
[INFO] [stdout]    |
[INFO] [stdout] 99 |     self.parse_expr();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 99 |     let _ = self.parse_expr();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/parser.rs:113:2
[INFO] [stdout]     |
[INFO] [stdout] 113 |     self.parse_expr();
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 113 |     let _ = self.parse_expr();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/parser.rs:99:2
[INFO] [stdout]    |
[INFO] [stdout] 99 |     self.parse_expr();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 99 |     let _ = self.parse_expr();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/parser.rs:113:2
[INFO] [stdout]     |
[INFO] [stdout] 113 |     self.parse_expr();
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 113 |     let _ = self.parse_expr();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "d4482f347f5edcf310f5524ab86220d7003f3b8520f38548bce5a5202b27155c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4482f347f5edcf310f5524ab86220d7003f3b8520f38548bce5a5202b27155c", kill_on_drop: false }`
[INFO] [stdout] d4482f347f5edcf310f5524ab86220d7003f3b8520f38548bce5a5202b27155c